Warning: require(vendor/autoload.php): Failed to open stream: No such file or directory in /home2/thememq9/public_html/PHPMailer-master/get_oauth_token.php on line 18

Fatal error: Uncaught Error: Failed opening required 'vendor/autoload.php' (include_path='.:/opt/cpanel/ea-php82/root/usr/share/pear') in /home2/thememq9/public_html/PHPMailer-master/get_oauth_token.php:18 Stack trace: #0 {main} thrown in /home2/thememq9/public_html/PHPMailer-master/get_oauth_token.php on line 18